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Finding the Fourth Proportional to 116,751.30, 175,125.15 and 79,218.06

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Solution

The fourth proportional to 116,751.30, 175,125.15 and 79,218.06 is: 118,825.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,751.30 : 175,125.15 = 79,218.06 : x
  2. Step 2: Convert to fraction form
    116,751.30/175,125.15 = 79,218.06/x
  3. Step 3: Cross multiply
    116,751.30x = 175,125.15 × 79,218.06
  4. Step 4: Simplify right side
    116,751.30x = 13,873,074,640.21
  5. Step 5: Solve for x
    x = 13,873,074,640.21/116,751.30
  6. Step 6: Final answer
    x = 118,825.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.